The ozone generator should be of a recommended size for the specific area and number of possible smokers & the severity of the odor problem.

The unit should be placed on the opposite side of the room away from the occupants. Ozone is heavier than air so mounting the unit up high seems to work well with this procedure.
We sell an optional remote control kit to make this easier. Using a fan to properly distribute the ozone throughout the room is recommended.

Adjust ozone generator so that the ozone or the problem odor can not be detected. Begin with the ozone generator on low setting and work the ozone level up slowly.
If ozone is set for 40 smokers and 30 vacate, then the ozone generator should be adjusted to a lower setting, otherwise the air will become excessively ozanated and possibly cause a sore throat or headache.

The ozone generator may also be hooked into the air handling system in order to ensure proper ozone distribution.
Bars and restaurants with lingering smoke odors can also be treated with overnight high ozone shock treatments to ensure your establishment will be fresh smelling the next business day.

A ozone shock treatment procedure is recommended to eliminate the initial odor contamination and provide continuous control over recurring contamination with ozone. 

Choose a size of ozone generator recommended by the manufacturer for the contaminated area.

Fans may be placed throughout the area being treated to provide good ozone distribution. 

Point the ozone generator it in the direction of the problem area. Operate the unit at it's highest capacity for as long as it takes to eliminate the odor problem. It should only 30-120 minutes to remove odors with the proper sized ozone generator. 

Odors absorbed in furniture, walls, and bedding may take longer to treat since these are porous materials.
When the high ozone shock treatment is completed air the room out
If odors continue place the ozone generator permanently in the area operating at a low level. Severe cases may require a 24 + hour treatment. Milder cases may need a smaller unit or use lower output setting.

NOTE: While performing a high ozone shock treatment, make sure that all people, pets, plants and other animals are vacant from the area to be treated. Also make sure that the ozone does not leak into connected or occupied rooms by way of furnace vents or wall cracks etc.

Cigarette smoke and most other organic odors can be removed from cars, trucks, boats, & motor homes in 30 to 60 minutes.  The vehicle should be cleaned thoroughly. 
Ensure that the inside of the vehicle is completely 100% dry prior to ozone application.

Place ozone generator in automobile, roll windows down ½ inch, and adjust vent fan on full. Do not put on the air conditioning as odors are harder to remove from cold surfaces. Operate ozone at half to full for 30 to 45 minutes. Air out auto and smell for lingering odors. Repeat the procedure if necessary.

The suggested size of the ozone generator depends upon how quickly you want to disinfect the vehicle of odors. Units from 400mg.hr. to 2000mg.hr. or even larger units can be used.